Nowadays, data intensive applications are in constant demand and there is need of computing environments with better intelligent capabilities than those present in today's Database Management Systems (DBMS). To build such systems we need formalisms that can perform complicate inferences,…

The integral development of a conventional broadcasting radio and its emission through internet is an investigative initiative and a pedagogic development. This idea, together with the creation of educative and local contents, wins great relevance in the TIC and the…

Defeasible Logic Programming (DeLP) is a knowledge representation formalism that combines results from Logic Programming and Defeasible Argumentation to provide reasoning based on contradictory and potentially incomplete information. DeLP allows information representation by using weak rules and provides an argumentation…

The objective of this paper is the construction of an Essential Object Model for Information Systems. This model is derived from the organization workflows representing the business processes and follows rules described by the methodology proposed. To achieve the desired…

Abstract: While acknowledging an extension of agroecology in the organic sector and a growing influence of agroecology in the academic world, we explore their relationships. These relationships cannot be reduced to an opposition between a scientific field and a practical…

One of the main crops and income and alternative food source for the population from Northeast region of Brazil is the lima bean (Phaseolus lunatus), besides an important source of protein for the rural population from South America and Africa.…

Este trabalho, de caráter conceitual, explora a comunicação como um processo imprescindível para a gestão do conhecimento nas instituições de pesquisa, desenvolvimento e inovação tecnológica (PD&I). Apresenta como uma alternativa à criação, compartilhamento e disseminação do conhecimento nestas instituições o…

Geographic knowledge discovery (GKD) is the process of extracting information and knowledge from massive georeferenced databases. Usually the process is accomplished by two different systems, the Geographic Information Systems (GIS) and the data mining engines. However, the development of those…

The anthropogenic dark earths (ADE, Terra Preta de Índio or terra preta arqueológica, as are often referred to in Portuguese) feature unique properties that are interesting not only from a pedological point of view but have important agronomic and economic…

The reality of global climate changes creates the necessity of predicting how will be the climatic scenario in our planet and how it will affect the economic activities in the future. For some climatic variables the global climate models projections…